Bag-printing machine



(No Model.) 4 w 4 5 Sheets-Sheet 1Q J. KELLY. V

BAG PRINTING MACHINE. No. 455,404. I Patented July '7, 18 91.

W Fad-1- H m B (M I WITNESSES: INVENTOR:

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ATTORNEY.

(No Model.) 5 Sheets-Sheet 2.

v J.J.KELLY.

BAG PRINTING MACHINE.

No.455,404. Patented July 7, 1891..

WITNESSES? 'I-liWENTQR;

ATTORNEY.

ml unnms PiTER! cm, mwmrmm, vmmmavou, a. q.

(No Model.) v 5 Sheet-Sheet a;

J. J'. KELLY.

BAG PRINTING MAOHINE.

No. 455,404. Patented July '7, 1891;

(y 4 INVENTOR $76M MMZ/ ATTORNEY.

(No Model.) 5 Shets-Sheet '4. J. J. KELLY. BAG PRINTING MAGHINE.

' No. 455,404. Patented July 7,1891. Figt7. 1 11918; 4

ATTORNEY.

mg wows Finn; qc incowumo wunmoYan, a. c.

(No Model.) 5 SheetsShe efi 5.

- J. J. KELLY.

BAG PRINTING MACHINE.

Patented July 7, 1891..

WITNESSES I INVENVTQR:

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ATTORNEY.

UNITED STATES PATENT OFFICE.

JAMES J. KELLY, OF BALTIMORE, MARYLAND.

. BAG-PR|NT|NG MACHINE.

SPECIFICATION forming part of Letters Patent No. 455,404, dated July '7, 1891.

Application filed February 24, 189i)- Serial No. 341,411. (No model.)

.To all whom it may concern.-

Be it known that I, JAMEsJ. KELLY, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Bag- Printing Machines, of which the following is a specification.

This invention relates to a machine for printing paper bags, the object being to provide a machine to apply two impressions or two colors on one side of the bag and one impression on the opposite side. 7

The invention is devised to accomplish this end, and is herein first fully described, and then particularly pointed out in the claims.

In the drawings herewith, Figure 1 is a vertical longitudinal section through the center of the press. .Fig. 2 is an elevation showing a back view of the press. Figs. 3 and 4 are detail views showing the clamping springs, guides, and fenders on the feed-board. Figs. 5 and 6 are detail views of one of the splitform cylinders. Figs. 7 and Sare detail views showing mechanism for operating the grippers on the impression-cylinders. Figs. 9 and 10 are detail views showing the delivery mechanism. Fig. 11 shows a tumbler and pin for operating same. Fig. 12 is a view of one of the grippers and a section of the rubber bearing. Figs. 13 and 14 are sectional views of one of the impression-cylinders and show the smutblanket and means for operating it. Fig. 15 is a view of the gear-wheel on the impressioncylinder. Fig. 16 is a detail view showing means for raising and lowering the distributing-rollers. Fig. 17 is a longitudinal section of one of the ink-distributing rollers.

The letter A designates the frame of the press; B, the feed-board; O O, the two impression-cylinders; D D D the three form or printing cylinders, respectively, and E the delivery-cylinder or skeleton delivery-frame.

On the upper end of the feed-board B, and extending across it, is a bridge I), to which springs 13' are attached. A bundle of bags a, placed under the bridge, will be pressed by a spring I), which prevents the bags from sliding down the feed-board. At the lower end and center of the feed-board are adjustable guides b which provide for two operators, one at each side, working at same time. The supports b, one of which only is shown, carry thence to the other roller 0 an elevated shaft 19*, extending across the board and having spring-fenders b for holding a bag until taken by the grippers on the impression-cylinder, and said fenders also form a guard for the operators hand. At the lower edge of the feed-board and adjacent to the fenders b are projecting thin narrowplates a, and a stop-arm a impinges down upon each of these plates. The operator who feeds the paper bag shoves it down under afender b until the forward edge of the bag comes in contact with that part of the stop-arm a which impinges on the said narrow plate a'. In this position the forward edge of the bag will be projecting beyond the lower edge of the feedboard, and the gripper g on the impression-- cylindercan readily take hold of it.

The impression-cylinders O O are mounted on shaft-s 0, each of which carries a gearwheel 0. This gear-wheel is provided with two slots a concentric with the shaft 0, and a bolt 3, passes through each slot into the end of the cylinder and confines the gear-wheel rigidly thereto. The slots ,2 allow the position of the cylinder to be shifted or adjusted, so that when the gear-wheels of the two cylinders are meshed the c lindel'sC C may be adjusted to bring the grippers g in the exact position desired. The cylinder-shafts have their journals in the frame A. Each of the impression-cylinders C C is hollow and has a longitudinal opening (1, and contains two rollers c 0 extending lengthwise, which have journals in the cylinder-heads 0 These rollers c c carry the smut-blanket e, which is wound on one roller 0 and passes through the opening (1, thence around the outside of the impression-cylinder to the said opening, and The shifting of the smut-blanket is done from outside. At one end the rollers have a square end cl, which projects beyond the cylinder-heads 0 (see Fig. 14) toreceive a wrench or key. Setscrews f (indicated by broken lines in 13) prevent the rollers c c from revolving after the blanket has been adjusted. Ametal bar g is secured along the edge at one side of the opening d, and the smut-blanket passes freely under he bar. The outer side of this for grippers g which are mounted on a shaft 9 parallel with the bar, and have bearings in the cylinder-heads c. To one end of this shaft is fixed a tumbler F, Figs. 7, S, and 11, to which is jointed a rod h, surrounded by a spiral spring 7L, as will be readily seen from the drawings. This spring keeps the gripper firmly upon the elastic bearing-surface on the bar g. The tumbler F is provided with a slot i, which, when the cylinder turns, engages with pins t" t fixed on plates i attached to the frame A. These fixed pins are so situated that they will engage with the tumbler F at certain intervals,trippin g them, and thus raising the grippers 9 off their elastic surface or seats.

The formorprintingcylindersD D D Figs. 1, 2, 5, and 6, are split at one side, as at y, and have set-screws y to compress the split. Each cylinder is mounted on a shaft w 41: with bearings in the frame A; These shafts each carry a gear-wheel d This wheel on the upper form shaft ac meshes'with the gear wheel a on the upper impression-cylinder O and the like wheel 01 on the middle fornishaft 00 and also the one on the lower formshaft 00 both mesh with the gear-wheel c on the lower impression-cylinder C.

The form-cylinders D D D of which there are two on each shaft, carry an adjustable holder j, which clamps the form-block or printing-block G. These cylinders are provided (see Figs. 5 and 6) on two sides with an ear or boss j,which forms a space or recess 7' ferreceivin g a collar 70, which is fastened to a screw by means of apin. Thescrewpasses through a hole in the ear or boss, and both the screw and collar may be turned freely without advancing. One of'the threaded ends of the screw enters a threaded hole in the adjustable holder j, and the other end is provided with jam-nuts k Thus it will be seen that the adjustable holder 3' may be raised orlowered, so as to get a heavier or lighter impression by only turning the screws 70 and j amnuts 70*. The adjustable form-holder j has a detachable side bar 7/, secured by bolts or screws m. This bar has an undercut edge m,and this, with a similar edge on the opposite side of the holder, forms a dovetail slide- Way and clamp to receive and hold the printing-block G.

The ink-fountains H H H are each provided at the bottom with a blade 9?, operated by a set-screw n to govern the amount of ink taken upon the distributing-roller 02 from which the ink is taken by a roller 0. Upon one end of this roller in the upper set is mounted two collars 0 0 between which a friction-roller plays. This roller is mounted on one end of a lever 0 the other end having similar friction-roller, which travels in a cam-groove 0 on the shaft 02' of the formcylinder. By the revolution of this camgroove a vibratory endwise motion is imparted to the distribnting-roller o. This same roller has also a fore-and aft reciprocating movement to enable it'to'deposit its ink upon the distributing-roller p, which spreads it upon the surfaces of both the ink-applying rollers 1) 19 from which it goes to the type form. The three ink-distributing rollers 19 p 19 are so arranged as to allow each one to be vertically adjusted separately by means of set-screws q q and square journal-boxes g in the slideway g as shown in Fig. 16.

The first ink-fountain H supplies ink for printing an impression on one side of a paper. The second fountain H supplies ink of one color, and the third fountain H ink of a diiferent color, both of which colors are impressed on the same side'of the paper, being the side opposite that which received the ink from the first fountain.

The skeleton delivery-frame E is provided with two heads, each having a split tand setscrew '6', by which the split can be clamped to the shaft t It also has an arm E". The shaft carries a gear-wheel u, intermeshing with the wheel on the lowest form-cylinder shaft 00 This shaft t has its journals in the frame A and is supported by the same. A slotted metal bar V connects the arms on the two heads. This bar is similar and for the same purpose as the one g used in the impressioncylinders. The arms also support the grippershaft u A cam L is attached to the frame A, upon which travels afriction-roller a, attached to an arm 11?, fixed to the gripper-shaft n carrying the grippers w. The shaft n is provided with a spiral spring 10', one end of which enters the arm E. The other end enters a collar u on the shaft. This spring keeps the grippers down upon the elastic bearing-surface. (See Fig. 9.) It will thus be seen that the cam L will raise the grippers when the friction-roller u rides up on the highest part of the cam. The arm n and its roller u, by-traveling on the stationary cam L, will cause the gripper a to be raised,

'(opened,) ready to take a bag from the lower impressiomcylinder 0. Just previous to the said roller a passing off the cam the edge of a printed bag on the lower impression-cylinder will takeposition under the gripperu, and the moment the roller passes olf the grippers will close down upon and hold the bag. Thus held the printed bag will be carried first over and then down, and when the roller u again comes in contact with the cam L the gripper will release the bag, and the latter will drop into one of the delivery-boxes M.

. The delivery-boxes M, Figs. 1 and 2, have one side at the rear partly open to facilitate removing the bag, and are provided at the opposite side and top edge with upward-projecting prongs Vof wire. The bag held by the revolving delivery-gripper u will strike against these prongs V, and thereby the bag will be removed from the gripper and prevented from adhering to it. The boxes therefore must be properly adjusted so as to have the said prongs Vin exactly the right place. To this end the boxes M are provided with IIO means for both a vertical and horizontal adjustment. Each box has at its bottom abolt.

right-angled bar has a slot at and is adj ustable vertically by means of bolts 5, entering the frame, thus allowing the box to have a vertical adjustment, as will be readily seen.

The boxes are also provided with fenders 6,

so that bags will all take one positionin the boxes.

Having described the several parts of my invention, the operation of the press will now be described.

The operator places a bundle of bags under v the spring I) on the feed-board, from which they are separately fed upon the first impression-cylinder O and receive one impression on one or v the back side. By means of the form-cylinders D the bag then passes to the second impression-cylinder G, where its front side is exposed, and while-thereon receives two impressions or two colors by means of the two form-cylinders D and D It will thus be seen that the opposite sides of the bag have been printed. The bag is then taken by the grippers of the delivery-cylinder E and deposited in the delivery-boxes M, the whole operation being free of liability to smut the print, the path of the bag being indicated by the dotted lines 10,.Fig. 1.

Different parts of the machine will admit of variations from the construction here shown. All equivalents and mere modificationsare therefore included as within the scope of my invention.

This machine has been described as useful for printing both sides of paper bags. It is obvious, however, that it will print both sides of any kind of work, and itmay therefore be usedrfor printing other work beside bags.

Having described my invention, I claim- 1. In a printingpress, the combination,

with the feed-board having guides and adapted to feed simultaneously a plurality of papers to be printed, of a fixed bridge or bar arranged above the rear end of the board and extending across the same, and a series of spring-fingers adjustably attachedto said bridge-bar and each arranged to bear upon a separate pile of paper on the board, substantially as described.

2. The combination,in a printin g-press, with the feed-board, impression-cylinder, and'two form-cylinders on a single shaft, of adjustable guides arranged at the center of said feed-board, substantially as described.

' 3. In a printingpress, the combination, with the feed-board adapted to simultaneously feed a plurality of sheets side by side,

having thin narrow plates attached-to the feed'board and projecting beyond the lower edges thereof, of an elevated shaft extending across the board at its lower edge and rigidly secured thereto, and a series of spring-fenders attached to said shaft, one for each series of sheets, each fender being adjacent to one of the spring-plates, substantially as described.

4. In a printing-press, the combination of a cylinder, a metal bar secured on the cylinder lengthwise and having a longitudinal slot g, filled with suitable elastic composition, and a rook-shaft also on said cylinder and parallel with said slotted bar and provided with grippers g which seat or bear on said elastic com-' position. v

5. In a printing-machine, the combination, with a feed-board having central guides for feeding two sets of sheets to the press, two impression-cylinders close together, each provided with gripping devices for holding the sheets on the cylinders, a shaft carrying two form-cylinders coacting with one of said impression-cylinders,'two shafts, each carrying two form-cylinders, each of which coact with the other impression-cylinder, a delivery-cyliuder provided with grippers to take ,the sheet fromthe last impression-cylinder, and a delivery-box having upward-proj ecting bearings to remove the sheet from the deliverycylinder, the said delivery-box being adjustable both vertically and horizontally, substantially as described, whereby two sets of sheets can be simultaneously fed to the press and be printed on one side, and then receive two impressions on the other side of the sheet, and finally be delivered into the delivery-box, substantially as described.

In testimony whereof I affix my signature-in presence of two witnesses.

JAMES J. KELLY.

Witnesses:

J OHN E. MORRIS, J no. T. MADDOX. 

